KXL_Button -- Get of the position and button number of a mouse cursor is carried out.

Uint16 KXL_GetButton(Uint16 *left, Uint16 *top);

Button number.

#include <KXL.h>

int main(void)
{
  Bool flag = False;
  Uint16 left = 0;
  Uint16 top = 0;
  Uint16 no = 0;
  Uint8 buff[64];

  KXL_CreateWindow(100, 100, "kxl.org",
		   KXL_EVENT_EXPOSURE_MASK |
                   KXL_EVENT_BUTTON_PRESS_MASK |
		   KXL_EVENT_KEY_PRESS_MASK);
  
  while (flag == False) {
    while (KXL_CheckEvents() == False);  
    switch (KXL_GetEvents()) {
    case KXL_EVENT_BUTTON_PRESS:
      no = KXL_GetButton(&left, &top);
      break;
    case KXL_EVENT_KEY_PRESS:
      flag = True;
      break;
    }
    KXL_ClearFrameImm(0, 0, 100, 100);
    sprintf(buff, "x:%4d", left);
    KXL_PutText(8, 20, buff);
    sprintf(buff, "y:%4d", top);
    KXL_PutText(8, 40, buff);
    sprintf(buff, "b:%4d", no);
    KXL_PutText(8, 60, buff);
    KXL_UpDateImm(0, 0, 100, 100);
  }
  KXL_DeleteWindow();
  return 0;
}